In "Black Lagoon", what colour is Rock's tie?

In the manga and anime series "Black Lagoon," Rock's tie is commonly depicted as teal. This color is likely chosen to represent his character's calm and collected nature, as teal is often associated with qualities such as balance, harmony, and tranquility. It serves as a visual contrast to the darker and more chaotic elements in the story, highlighting Rock's ability to navigate through dangerous situations with composure and diplomacy.